Inside Unmanned Systems

JUN-JUL 2019

Inside Unmanned Systems provides actionable business intelligence to decision-makers and influencers operating within the global UAS community. Features include analysis of key technologies, policy/regulatory developments and new product design.

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12  June/July 2019 unmanned systems inside USER SHOWCASE Photos courtesy Crafton Tull and Microdrones. FIELD TESTED, FIELD PROVEN. W hen a client approached Cra on Tull with a project to survey a seven-mile corridor of new highway con- struction in Tennessee, within a two-week period, Nick Tucker, project manager and vice president of the energy divi- sion, knew exactly which solution the professional design fi rm would use: the mdLiDAR1000 from Microdrones. The client needed a topographic survey, a classifi ed point cloud and up-to-date ortho imagery to create a high-resolution surface model that could be used for quantity verification, Tucker said. To begin the planning process, the team received a CAD fi le that contained the centerline route, the right-of-way and the existing control points already on site. " A er a review of the site, I could see the Microdrones so- lution was going to be the best tool for the job," Tucker said, "based on the terrain, based on the size of the project as well as some of the obstacles." They knew going in, that, that there would be several chal- lenges, including the terrain change, which could be as much as 150 to 200 feet from the edge of the right-of-way to the cen- terline, Tucker said. Then there was the size of the project, with the right-of-way getting as wide as 500 to 600 feet. The team also had to stay within the FAA's Part 107 line of sight rules, deal with any weather conditions that popped up and meet the tight two-week turnaround time. To do all this, Cra on Tull needed a rugged, reliable system that could quickly gather the necessary information, from a company that also provides the tools necessary to effi ciently cre- ate the deliverables the client required. The Microdrones system met those requirements, while also saving time and providing a more than 50 percent reduction in costs to the customer. The Planning Process and On-Site Workflow The team planned 22 fl ights with multiple take-off and landing locations to complete the project—13 with the mdLiDAR1000 and nine with the mdMapper1000DG. Most of the initial planning How Crafton Tull employed both the mdLiDAR1000 and mdMapper1000DG to map a seven-mile corridor and save a customer more than 50 percent in the process. by Renee Knight A MORE EFFICIENT WAY TO MAP UNMATCHED SUPPORT The support Crafton Tull has received from Microdrones has helped it grow its drone program and successfully complete projects like the one in Tennessee, UAV Survey Coordinator Jeff Davis said. "The Microdrones support has been key to us," he said. "When we're on a project we feel like they're right there with us." An aerial view of the seven-mile corridor to be surveyed by Crafton Tull. DEM was imported into AutoCAD Civil 3D and contours were generated and cleaned up for final design surface model.

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